Tech Jobs in Ontario, CA
172,772 open positions · Updated daily
Ontario, CA sits in the heart of Orange County, a region that blends the innovation of the Greater Los Angeles tech corridor with a more affordable lifestyle. The city’s proximity to major hubs like Irvine, Santa Ana, and the bustling downtown Los Angeles area means tech talent can tap into a diverse ecosystem of startups, established firms, and research institutions while enjoying a lower cost of living. The presence of the Ontario International Airport further fuels a strong logistics technology sector, attracting companies that need real‑time data solutions for freight and supply chain operations.
Tech companies in Ontario span several verticals. Software and web development firms such as Adobe’s regional office and Oracle’s Irvine branch thrive here, alongside biotech innovators like Genentech’s Orange County lab and Life Sciences Park startups. The city also hosts hardware manufacturers, including Intel’s manufacturing plant in nearby Santa Ana, and telecommunications leaders like T‑Mobile’s Orange County headquarters. With the University of California, Irvine nearby, research collaborations and talent pipelines flow directly into local tech teams.
Ontario’s median rent hovers around $2,500 a month, significantly below the $3,500 average in central Los Angeles, but salaries for tech roles have been rising to match the talent demand. Salary transparency is therefore essential for candidates to negotiate competitively and for employers to attract the best talent. Knowing the exact pay range for roles such as software engineers, data scientists, or product managers helps job seekers evaluate whether a position aligns with their financial goals and lifestyle needs.
Project Manager
Company: NES Fircroft
Location: Los Angeles, CA
Posted Sep 24, 2025
Preferably, knowledge of MPMP process, and has worked in EP contractors on refinery projects. The Project Manager must have electrical substation replacement…
Full Stack Developer (JavaScript)
Company: FinOps Blueprint
Location: San Diego, CA
Posted Sep 24, 2025
Serve diverse users from field operators to executive decision-makers. Build an AI-powered, cloud-native platform that's flexible enough to handle any complex…
District Support Pharmacist
Company: CVS Health
Location: San Jose, CA
Posted Sep 24, 2025
Understanding and complying with all relevant federal and state laws, regulations, professional standards, and ethical principles; complying with CVS Health…
Customer Service/Retail Associate
Company: Dynamic evolution inc
Location: San Diego, CA
Posted Sep 24, 2025
Process transactions accurately using the Point of Sale (POS) system and cash register. Proficiency in operating cash registers and POS systems efficiently.
Technical Support Engineer - Automation
Company: IDR Inc.
Location: San Diego, CA
Posted Sep 24, 2025
The Technical Support Engineer provides technical support to field engineers, technicians, and product support personnel who are diagnosing, troubleshooting,…
Software Development Engineer
Company: Adobe
Location: San Jose, CA
Posted Sep 24, 2025
Bachelor’s or higher degree in Computer Science, Engineering, or a related field. Adobe will consider qualified applicants with arrest or conviction records for…
Software Test Engineer, 6 month Temp
Company: SHIELD AI
Location: San Diego, CA
Posted Sep 24, 2025
This is achieved via a cross-functional team, with skills ranging from autonomy system engineering, robotics integration, software development, test engineering…
HVAC Technician/Installer
Company: Paulson Air Condtioning
Location: San Diego, CA
Posted Sep 24, 2025
"Upsell" on repair calls ( with the customer's best interest in mind ). Utilize diagnostic tools, gauges, and meters to identify equipment malfunctions,…
Graphic Designer
Company: Santa Monica Seafood
Location: Los Angeles, CA
Posted Sep 24, 2025
Take product photos, create POS sheets, and develop other sales collateral. Develop and edit creative materials for company websites and social sites including…
Data Science Analyst III / Office of Enterprise Data / Full-time
Company: Children's Hospital Los Angeles
Location: Los Angeles, CA
Posted Sep 24, 2025
Required: Bachelor's degree from an accredited university in a relevant field (Public Health, Computer Science, Information Systems) or HS Diploma/GED plus 8…
AI Engineer (Remote)
Company: Rula
Location: Los Angeles, CA
Posted Sep 24, 2025
8+ years in software engineering, data engineering, or platform engineering/infra. In this role, you will own the full lifecycle of GenAI solutions: from…
Plumber
Company: ikmar Plumbing
Location: San Jose, CA
Posted Sep 24, 2025
Valid U.S. driver's license Strong problem-solving skills and a professional demeanor. Key Responsibilities: Install, maintain, and repair residential plumbing…